Nitrogen tribromide

Nitrogen tribromide is a chemical compound with the formula NBr3. It is extremely explosive in its pure form, even at −100 °C, and was not isolated until 1975.[2] It is a deep-red and volatile solid.

Nitrogen tribromide
Nitrogen tribromide molecule
Names
IUPAC name
nitrogen tribromide
Identifiers
3D model (JSmol)
ChemSpider
Properties
NBr3
Molar mass 253.7187 g/mol
Appearance Deep red solid
Melting point Explodes at -100 °C[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation

NBr3 was first prepared by reaction of bistrimethlysilylbromamine (bis(trimethylsilyl)amine bromide) with bromine monochloride (with trimethylsilyl chloride as byproduct) at −87 °C according to the following equation:

(Me3Si)2NBr + 2 BrCl → NBr3 + 2 Me
3SiCl

where "Me" is a methyl group. It reacts instantly with ammonia in dichloromethane solution at −87 °C to yield NBrH2.

References
  1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–73, ISBN 0-8493-0594-2
  2. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 439. ISBN 978-0-08-037941-8.
Salts and covalent derivatives of the nitride ion
NH3
N2H4		 He(N2)11
Li3N Be3N2 BN β-C3N4
g-C3N4
CxNy		 N2 NxOy NF3 Ne
Na3N Mg3N2 AlN Si3N4 PN
P3N5		 SxNy
SN
S4N4		 NCl3 Ar
K3N Ca3N2 ScN TiN VN CrN
Cr2N		 MnxNy FexNy CoN Ni3N CuN Zn3N2 GaN Ge3N4 As Se NBr3 Kr
Rb3N Sr3N2 YN ZrN NbN β-Mo2N Tc Ru Rh PdN Ag3N CdN InN Sn Sb Te NI3 Xe
Cs3N Ba3N2   Hf3N4 TaN WN Re Os Ir Pt Au Hg3N2 TlN Pb BiN Po At Rn
Fr3N Ra3N2   Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
↓
La CeN Pr Nd Pm Sm Eu GdN Tb Dy Ho Er Tm Yb Lu
Ac Th Pa UN Np Pu Am Cm Bk Cf Es Fm Md No Lr
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